ST. LOUIS, MO - NOVEMBER 6: U.S. Sen. Claire McCaskill (D-MO) greets supporters with her husband, Joseph Shepard (R) and other family members during an election night party November 6, 2012 in St. Louis, Missouri. McCaskill won in her re-election bid against U.S. Rep. Todd Akin (R-MO) for the Missouri U.S. senate seat. (Photo by Whitney Curtis/Getty Images) less

ST. LOUIS, MO - NOVEMBER 6: U.S. Sen. Claire McCaskill (D-MO) greets supporters with her husband, Joseph Shepard (R) and other family members during an election night party November 6, 2012 in St. Louis, ... more

RICHMOND, VA - NOVEMBER 06: U.S. Senator-elect Tim Kaine speaks to his supporters at the Downtown Richmond Marriot after winning the Virginia U.S. Senate seat on November 6, 2012 in Richmond, Virginia. Kaine defeated former U.S. Sen. George Allen in a tight race. (Photo by Patrick McDermott/Getty Images) less

RICHMOND, VA - NOVEMBER 06: U.S. Senator-elect Tim Kaine speaks to his supporters at the Downtown Richmond Marriot after winning the Virginia U.S. Senate seat on November 6, 2012 in Richmond, Virginia. Kaine ... more

U.S. Senate candidate, Rep. Todd Akin, R-Mo., with his wife Lulli take the stage to make his concession speech to U.S. Sen. Claire McCaskill, D-Mo. Tuesday, Nov. 6, 2012, in Chesterfield, Mo. (AP Photo/Charlie Riedel) less

U.S. Senate candidate, Rep. Todd Akin, R-Mo., with his wife Lulli take the stage to make his concession speech to U.S. Sen. Claire McCaskill, D-Mo. Tuesday, Nov. 6, 2012, in Chesterfield, Mo. (AP Photo/Charlie ... more

With his wife Ilana at his side, U.S. Senate candidate Josh Mandel gives his concession speech on election night in Columbus, Ohio. November 6, 2012. He was defeated by Democratic Sen. Sherrod Brown. (AP Photo/Mike Munden) less

With his wife Ilana at his side, U.S. Senate candidate Josh Mandel gives his concession speech on election night in Columbus, Ohio. November 6, 2012. He was defeated by Democratic Sen. Sherrod Brown. (AP ... more

Photo: Mike Munden, Associated Press

With his wife Ilana at his side, U.S. Senate candidate Josh Mandel... Photo-3706340.52080 - San Antonio Express-News

Tom Smith, Pennsylvania Republican candidate for the U.S. Senate hugs his wife Saundy after conceding to U.S. Sen. Bob Casey, D-Pa., at his election night party in Pittsburgh Tuesday, Nov. 6, 2012. (AP Photo/Gene J. Puskar) less

Tom Smith, Pennsylvania Republican candidate for the U.S. Senate hugs his wife Saundy after conceding to U.S. Sen. Bob Casey, D-Pa., at his election night party in Pittsburgh Tuesday, Nov. 6, 2012. (AP ... more

George Allen, joined by his family, gives his concession speech Tuesday night, Nov. 6, 2012, in Richmond, Va. Allen, a Republican, lost the race for the U.S. Senate seat to Democrat Tim Kaine. (AP Photo/Richmond Times-Dispatch, Dean Hoffmeyer) less

George Allen, joined by his family, gives his concession speech Tuesday night, Nov. 6, 2012, in Richmond, Va. Allen, a Republican, lost the race for the U.S. Senate seat to Democrat Tim Kaine. (AP ... more

Photo: Dean Hoffmeyer, Associated Press

George Allen, joined by his family, gives his concession speech... Photo-3706349.52080 - San Antonio Express-News

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U.S. House of Representatives District 33 candidate, Marc Veasey, applauds his supporters during an election day celebration at Smokeys BBQ on Lancaster Avenue in East Fort Worth Tuesday, May 29, 2012 evening. Robert W. Hart/Special Contributor less

U.S. House of Representatives District 33 candidate, Marc Veasey, applauds his supporters during an election day celebration at Smokeys BBQ on Lancaster Avenue in East Fort Worth Tuesday, May 29, 2012 evening. ... more

Photo: ROBERT W. HART, Robert W. Hart/Photographer

U.S. House of Representatives District 33 candidate, Marc Veasey,... Photo-3706350.52080 - San Antonio Express-News

Speaker John Boehner, R-Ohio, center, votes at Ronald Reagan Lodge, Tuesday, Nov. 6, 2012, in West Chester, Ohio. After a grinding presidential campaign, Americans head into polling places across the country. (AP Photo/Al Behrman) less

Speaker John Boehner, R-Ohio, center, votes at Ronald Reagan Lodge, Tuesday, Nov. 6, 2012, in West Chester, Ohio. After a grinding presidential campaign, Americans head into polling places across the country. ... more

Rep Eric Cantor, R-Va., speaks to the crowd at the Republican Party of Virginia post election event at the Omni Hotel in Richmond, Va., on Tuesday Nov. 6, 2012. Cantor was reelected to his seventh term in the United States House of Representatives.(AP Photo/Clement Britt) less

Rep Eric Cantor, R-Va., speaks to the crowd at the Republican Party of Virginia post election event at the Omni Hotel in Richmond, Va., on Tuesday Nov. 6, 2012. Cantor was reelected to his seventh term in the ... more

In this Wednesday, Oct. 10, 2012 photo, U.S. Rep. Brad Sherman speaks during a debate against U.S. Rep. Howard Berman at ONEgeneration Senior Center in Reseda, Calif. Sherman won in Tuesday's election. (AP Photo/Los Angeles Daily News, Hans Gutknecht) less

In this Wednesday, Oct. 10, 2012 photo, U.S. Rep. Brad Sherman speaks during a debate against U.S. Rep. Howard Berman at ONEgeneration Senior Center in Reseda, Calif. Sherman won in Tuesday's election. (AP ... more

Suzan DelBene rushes through a room of supporters on her way to her room upstairs at a party at the Woodmark Hotel in Kirkland. DelBene, a Democrat, is running for the U. S. House - District 1. To DelBene's right is U.S. Rep. Rick Larsen. (AP Photo/The Seattle Times, Ellen M. Banner) less

Suzan DelBene rushes through a room of supporters on her way to her room upstairs at a party at the Woodmark Hotel in Kirkland. DelBene, a Democrat, is running for the U. S. House - District 1. To DelBene's ... more

Photo: Ellen Banner, Associated Press

Suzan DelBene rushes through a room of supporters on her way to her... Photo-3706356.52080 - San Antonio Express-News

Kathy Hochul speaks at her headquarters, addressing supporters on Wednesday, Nov. 7, 2012 in Hamburg, N.Y., as her race in the 27th congressional district against Chris Collins is too close to call. (AP Photo/The Buffalo News, Harry Scull Jr.) less

Kathy Hochul speaks at her headquarters, addressing supporters on Wednesday, Nov. 7, 2012 in Hamburg, N.Y., as her race in the 27th congressional district against Chris Collins is too close to call. (AP ... more

House Oversight and Investigations subcommittee member Rep. Henry Waxman, D-Calif., holds up a memo on Capitol Hill in Washington, Friday, Oct. 14, 2011, during the subcommittee's hearing on "Continuing ... more

Photo: Jacquelyn Martin, Associated Press

House Oversight and Investigations subcommittee member Rep. Henry... Photo-3706361.52080 - San Antonio Express-News

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FILE - In this July 30, 2011, file photo, Rep. Allen West, R-Fla. speaks on Capitol Hill in Washington. West and two other high-profile House conservatives are facing opponents who insist that their views are too extreme, have trickier paths to re-election next month. GOP House candidate, West of Florida, Steve King of Iowa and Joe Walsh of Illinois are all embroiled in tough and expensive races that are drawing plenty of spending by friends and foes from around the country. West lost to Walsh during the Nov. 6, 2012 election. (AP Photo/J. Scott Applewhite, File) less

FILE - In this July 30, 2011, file photo, Rep. Allen West, R-Fla. speaks on Capitol Hill in Washington. West and two other high-profile House conservatives are facing opponents who insist that their views are ... more